比较法校准

在吸收前人研究成果的基础上，文中提出了工作用压电加速度传感器校准系统应用方波信号激励，同时应用快速傅立叶变换（FFT）的方法来实现比较法校准。

In view of predecessors ' research achievements we put forward a method using square wave excitation and the Fast Furrier Transformation ( FFT ) to realize the comparison calibration for the calibration system of piezoelectric accelerometer .

该装置采用流量计法进行容量检定，同时用容量比较法校准流量计，验证流量计进行容量计量的准确性，液位的测量采用磁致伸缩液位计进行。

The device does capacity inspection by flow meter method , flow meter calibration by capacity comparison , and verifies the accuracy of flow meters for volume measure .

在验证实验中进行了相位测量、幅值测量和比较法相位校准实验，实验得到了较好的结果。

The phase test , amplitude test and phase calibration method by comparison are done in the verification test and better result is obtained .

本文介绍的校准装置，它可以用己知漏率值的参考漏孔相对比较法来校准漏孔。

This report introduces the calibration apparatus which is need through the reference leak in the relative comparison method of the known leakage rate value to calibration leaks .

比较法相位型振动校准系统的研究和实现

Development of the Vibration Complex Sensitivity Calibration System Based on Comparison Method and Virtual Instrument Technology